418555685428 has 6 divisors (see below), whose sum is σ = 732472449506. Its totient is φ = 209277842712.

The previous prime is 418555685413. The next prime is 418555685437. The reversal of 418555685428 is 824586555814.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 295748893584 + 122806791844 = 543828^2 + 350438^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52319460675 + ... + 52319460682.

Almost surely, 2^418555685428 is an apocalyptic number.

It is an amenable number.

418555685428 is a deficient number, since it is larger than the sum of its proper divisors (313916764078).

418555685428 is a wasteful number, since it uses less digits than its factorization.

418555685428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104638921361 (or 104638921359 counting only the distinct ones).

The product of its digits is 61440000, while the sum is 61.

The spelling of 418555685428 in words is "four hundred eighteen billion, five hundred fifty-five million, six hundred eighty-five thousand, four hundred twenty-eight".